Question: The spring attached to the mechanism has an unstretched length when ? = 90 o . Determine the position for equilibrium and investigate the stability

The spring attached to the mechanism has an unstretched length when ? = 90^o. Determine the position for equilibrium and investigate the stability of the mechanism at this position. Disk A is pin connected to the frame at B and has a weight of 20 lb.

1.25 ft k = 16 lb/ft 1.25 ft B.

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